CN109897704B - Coal water slurry additive, composition thereof and preparation method of coal water slurry - Google Patents
Coal water slurry additive, composition thereof and preparation method of coal water slurry Download PDFInfo
- Publication number
- CN109897704B CN109897704B CN201711310983.9A CN201711310983A CN109897704B CN 109897704 B CN109897704 B CN 109897704B CN 201711310983 A CN201711310983 A CN 201711310983A CN 109897704 B CN109897704 B CN 109897704B
- Authority
- CN
- China
- Prior art keywords
- weight
- water slurry
- coal
- parts
- lignosulfonate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003245 coal Substances 0.000 title claims abstract description 137
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 122
- 239000002002 slurry Substances 0.000 title claims abstract description 115
- 239000000654 additive Substances 0.000 title claims abstract description 68
- 230000000996 additive effect Effects 0.000 title claims abstract description 61
- 239000000203 mixture Substances 0.000 title claims abstract description 50
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 229920001732 Lignosulfonate Polymers 0.000 claims abstract description 24
- 239000010426 asphalt Substances 0.000 claims abstract description 23
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 19
- 150000001875 compounds Chemical class 0.000 claims abstract description 19
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 18
- 239000010452 phosphate Substances 0.000 claims abstract description 18
- 239000003513 alkali Substances 0.000 claims abstract description 17
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 7
- 239000011734 sodium Substances 0.000 claims description 7
- 229910052708 sodium Inorganic materials 0.000 claims description 7
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 5
- 239000004021 humic acid Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000011591 potassium Substances 0.000 claims description 5
- 229910052700 potassium Inorganic materials 0.000 claims description 5
- 229920005552 sodium lignosulfonate Polymers 0.000 claims description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 4
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 4
- 229920005550 ammonium lignosulfonate Polymers 0.000 claims description 3
- 239000002585 base Substances 0.000 claims description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 2
- 239000000920 calcium hydroxide Substances 0.000 claims description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 2
- 229920005551 calcium lignosulfonate Polymers 0.000 claims description 2
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 claims description 2
- 239000011777 magnesium Substances 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 claims description 2
- 229940048086 sodium pyrophosphate Drugs 0.000 claims description 2
- UGTZMIPZNRIWHX-UHFFFAOYSA-K sodium trimetaphosphate Chemical compound [Na+].[Na+].[Na+].[O-]P1(=O)OP([O-])(=O)OP([O-])(=O)O1 UGTZMIPZNRIWHX-UHFFFAOYSA-K 0.000 claims description 2
- 235000019818 tetrasodium diphosphate Nutrition 0.000 claims description 2
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 2
- 150000007514 bases Chemical class 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- -1 humate Substances 0.000 abstract description 4
- 235000021317 phosphate Nutrition 0.000 description 11
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 10
- 238000009472 formulation Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000004537 pulping Methods 0.000 description 9
- 239000000843 powder Substances 0.000 description 8
- 239000002244 precipitate Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000002309 gasification Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 239000003250 coal slurry Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 125000000623 heterocyclic group Chemical group 0.000 description 3
- 229920005610 lignin Polymers 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 125000000542 sulfonic acid group Chemical group 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical class OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- FRPDXUHZSXRSCC-UHFFFAOYSA-N amino benzenesulfonate Chemical compound NOS(=O)(=O)C1=CC=CC=C1 FRPDXUHZSXRSCC-UHFFFAOYSA-N 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000006277 sulfonation reaction Methods 0.000 description 2
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-M benzenesulfonate Chemical compound [O-]S(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-M 0.000 description 1
- 229940077388 benzenesulfonate Drugs 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 description 1
- 229940092714 benzenesulfonic acid Drugs 0.000 description 1
- 125000002619 bicyclic group Chemical group 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 125000002950 monocyclic group Chemical group 0.000 description 1
- 150000002790 naphthalenes Chemical class 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000010742 number 1 fuel oil Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- KSVSZLXDULFGDQ-UHFFFAOYSA-M sodium;4-aminobenzenesulfonate Chemical compound [Na+].NC1=CC=C(S([O-])(=O)=O)C=C1 KSVSZLXDULFGDQ-UHFFFAOYSA-M 0.000 description 1
- HLPHHOLZSKWDAK-UHFFFAOYSA-M sodium;formaldehyde;naphthalene-1-sulfonate Chemical compound [Na+].O=C.C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 HLPHHOLZSKWDAK-UHFFFAOYSA-M 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Landscapes
- Liquid Carbonaceous Fuels (AREA)
Abstract
The invention relates to the field of preparation of coal water slurry, in particular to a coal water slurry additive, a composition thereof and a preparation method of the coal water slurry. The composition contains sulfonated asphalt, lignosulfonate, humate, phosphate and alkali compounds; wherein, relative to 100 weight parts of sulfonated asphalt, the content of the lignosulfonate is 10-80 weight parts, the content of the humate is 50-300 weight parts, the content of the phosphate is 10-50 weight parts, and the content of the alkali compound is 2-40 weight parts. The coal water slurry additive provided by the invention has the advantages of low cost, small dosage, capability of obtaining the coal water slurry with good fluidity, high concentration and good stability, and compared with the conventional common additive, the coal water slurry concentration is improved by 1-2% under the same condition, and the price is reduced by 30%.
Description
Technical Field
The invention relates to the field of preparation of coal water slurry, in particular to a coal water slurry additive, a composition thereof and a preparation method of the coal water slurry.
Background
Among fossil energy resources in China, coal is a very important resource. The proportion of coal in the energy production and energy consumption structure of China has been kept at the level of more than 70% for years. Coal is used as a resource, one of the most important purposes is to prepare coal water slurry for gasification reaction, and high value-added chemicals are prepared through a series of processes. Coal is used as energy source, and can also be made into coal water slurry to be used as fuel to substitute oil, gas and coal for combustion, and has the characteristics of high combustion efficiency, low pollutant discharge and the like.
Coal water slurry is a mixture comprising coal fines, water and additives. The coal water slurry technology is an important direction for the development of clean coal technology in China, and accords with the national energy conservation and emission reduction situation and policy guidance under the current environment protection policy and energy structure adjustment background. The coal water slurry is used as a coal-based clean fuel, has been rapidly developed for replacing coal and oil in economically developed areas such as Changbai triangle, Zhujia triangle and the like in China, has the usage amount of 3000 million tons/year for the coal water slurry as a fuel in China according to incomplete statistics, and is widely applied to industries such as electric power, petroleum, chemical industry, building materials and the like. The coal water slurry is used as a gasification raw material, has the advantages of advanced technology, mature and reliable operation, high single-furnace production capacity, low investment operation cost, high degree of localization and the like, is mainly applied to methanol, synthetic ammonia, olefin, coal oil and the like in the coal chemical industry of China, and has the usage amount of the gasified coal water slurry exceeding 2 hundred million tons per year by 2016 years according to statistics.
High-quality coal water slurry is required to have high concentration, low viscosity, good fluidity and stability, and a certain standard is provided for the grade of gasified coal water slurry in GBT31426-2015, wherein the grade I coal water slurry requires that: the concentration is more than or equal to 63 percent, and the apparent viscosity is less than or equal to 1300 cp; II-level coal water slurry requirement: the concentration is more than or equal to 59 percent, and the apparent viscosity is less than or equal to 1300 cp; the requirements of the third-level coal water slurry are as follows: the concentration is more than or equal to 55 percent, and the apparent viscosity is less than or equal to 1300 cp. In order to obtain high-grade coal water slurry, the coal water slurry additive is a key technology for preparing high-quality coal water slurry and is an important component of the production cost of the coal water slurry.
The existing coal water slurry additives mainly comprise naphthalene series, humic acid series, lignin series, polyolefin series, acrylic acid series and related compound products. The naphthalene additive has good dispersibility, strong viscosity-reducing effect, good slurry flow pattern, but poor slurry stability, easy water precipitation to generate hard precipitate and higher price. The humic acid additive has good dispersion performance, can be used independently, but is sensitive to metal ions, is easy to form precipitates, has poor slurry stability and has higher requirements on the water quality of pulping. The lignin additive has rich raw materials, low price and good slurry stability, but the slurry has higher viscosity and poor slurry flow pattern. The viscosity and stability of the slurries made with the polyolefin and acrylic additives are good, but are expensive.
CN101333469A discloses a method for synthesizing an anthracene water-coal-slurry additive, which comprises sulfonating, hydrolyzing, condensing and neutralizing crude anthracene, and compounding the prepared anthracene additive and a sodium naphthalene sulfonate formaldehyde polycondensate according to the mass ratio of 1: 0.2-2 to obtain the water-coal-slurry additive, wherein the addition amount of the anthracene water-coal-slurry additive is 0.5-1.5% of the weight of dry-base coal powder. The price of the crude anthracene is much higher than that of common additives such as humic acid series, lignin series and the like, so the coal water slurry additive has higher price and no market competitiveness. In addition, the addition amount of the coal water slurry additive in the existing gasification coal water slurry enterprises is about 0.2 percent of the weight of dry-based coal powder, the addition amount of some enterprises is even reduced to 0.1 percent of the weight of the dry-based coal powder, and the addition amount of the coal water slurry additive is 0.5 to 1.5 percent of the weight of the dry-based coal powder, so that the pulping cost is high.
CN101735870A discloses a preparation method of a coal water slurry additive, which takes coal tar distillate wash oil as a starting material, carries out sulfonation reaction with a sulfonating agent, then carries out polycondensation reaction with aminobenzene sulfonate, phenols and formaldehyde, and carries out neutralization after the reaction is finished. The price of the aminobenzenesulfonate, such as sodium sulfanilate, is higher, so that the prepared coal water slurry additive has higher price. In addition, in the embodiment, the additive addition amount is 0.5 percent of the weight of dry-based coal powder, and is larger, so that the pulping cost is higher.
CN102839026A discloses a method for producing a coal water slurry additive by using a high heterocyclic ring-containing aromatic hydrocarbon component, which comprises the steps of mixing the high heterocyclic ring-containing aromatic hydrocarbon component with a diluent in a ratio of 3: 1-7: 1, sulfonating the mixture by using liquid sulfur trioxide or concentrated sulfuric acid, carrying out hydrolysis formaldehyde condensation to produce benzenesulfonic acid, neutralizing and removing water to obtain heterocyclic benzene sulfonate, namely the coal water slurry additive.
In conclusion, the coal water slurry additive used in China at present has a plurality of types, but the coal water slurry with high quality is difficult to prepare. Taking gasified coal water slurry as an example, most coal water slurries produced by coal water slurry gasification enterprises can not reach the standard of I-level coal water slurry. The concentration of the coal water slurry is improved by 1 percentage point, and 1000 ten thousand yuan per year of profit is brought for a methanol production device of 180 ten thousand tons per year. Therefore, the development of the coal water slurry additive with high cost performance is still the key for improving the quality of the coal water slurry, and the successful development of the additive has important significance for reducing the production cost of enterprises.
Disclosure of Invention
The invention aims to provide a coal water slurry additive which has low cost and small dosage and can prepare coal water slurry with good fluidity, high concentration and good stability, a composition thereof and a preparation method of the coal water slurry.
In order to achieve the above object, in one aspect, the present invention provides a coal water slurry additive composition comprising sulfonated asphalt, lignosulfonate, humate, phosphate and alkali compounds;
wherein, relative to 100 weight parts of sulfonated asphalt, the content of the lignosulfonate is 10-80 weight parts, the content of the humate is 50-300 weight parts, the content of the phosphate is 10-50 weight parts, and the content of the alkali compound is 2-40 weight parts.
In a second aspect, the invention provides a coal water slurry additive comprising the above composition.
In a third aspect, the present invention provides a method for producing a coal water slurry, comprising: and pulping the coal, the coal-water slurry additive and the water, wherein the coal-water slurry additive contains the composition.
The coal water slurry additive provided by the invention has the advantages of low cost, small dosage, capability of obtaining the coal water slurry with good fluidity, high concentration and good stability, and compared with the conventional common additive, the coal water slurry concentration is improved by 1-2% under the same condition, and the price is reduced by about 30%. In addition, the coal water slurry additive has wide application range, is not only suitable for coal pulping, but also can be used for pulping coal direct liquefaction residues and/or coal direct liquefaction residue raffinate.
Detailed Description
The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.
In one aspect, the invention provides a coal water slurry additive composition comprising sulfonated asphalt, lignosulfonate, humate, phosphate and alkali compounds;
wherein, relative to 100 weight parts of sulfonated asphalt, the content of the lignosulfonate is 10-80 weight parts, the content of the humate is 50-300 weight parts, the content of the phosphate is 10-50 weight parts, and the content of the alkali compound is 2-40 weight parts.
According to the invention, the components contained in the composition are all low-cost and high-source components, and the coal water slurry additive with excellent performance can be obtained through the coordination of the components in various contents, so that the coal water slurry with good fluidity, high concentration and good stability can be prepared at low cost under the condition of less additive consumption. Preferably, the content of the lignosulfonate is 20-70 parts by weight, the content of the humate is 60-250 parts by weight, the content of the phosphate is 20-50 parts by weight, and the content of the alkali compound is 5-30 parts by weight, relative to 100 parts by weight of the sulfonated asphalt. More preferably, the lignosulfonate is 30-50 parts by weight, the humate is 65-220 parts by weight, the phosphate is 30-45 parts by weight, and the alkali compound is 6-25 parts by weight, relative to 100 parts by weight of the sulfonated asphalt. More preferably, the lignosulfonate is 35-50 parts by weight, the humate is 65-100 parts by weight, the phosphate is 35-40 parts by weight, and the alkali compound is 6-15 parts by weight, relative to 100 parts by weight of the sulfonated asphalt. The above ingredients were all measured on a dry weight basis except for water.
According to the invention, the sulfonated asphalt is a brownish black paste or powder product which is prepared by sulfonation of monocyclic, bicyclic, fused ring and polycyclic aromatic hydrocarbons in asphalt under the action of a sulfonating agent and replacement of hydrogen atoms on an aromatic ring by sulfonic acid groups. The main components of the asphalt comprise sulfonated asphalt sodium salt, asphaltene, a small amount of oxidized asphalt products, inorganic salt and the like. Wherein, the sulfonic acid group content in the sulfonated asphalt can be more than 10 weight percent, and is better to be more than 12 weight percent; the content of the water-soluble substance may be 70% by weight or more, preferably 75% by weight or more; the water content is 8 wt% or less, preferably 5 wt% or less. Such sulfonated asphalts may be obtained by means conventional in the art, and may be, for example, commercially available or prepared by methods conventional in the art.
According to the invention, the lignosulfonate may have various options, preferably the lignosulfonate is one or more of sodium lignosulfonate, ammonium lignosulfonate, calcium lignosulfonate, potassium lignosulfonate and magnesium lignosulfonate, preferably sodium lignosulfonate.
According to the invention, the humate can have various choices, and preferably the humate is one or more of sodium humate, potassium humate and ammonium humate, preferably sodium humate.
According to the present invention, the phosphate may have various options, preferably the phosphate is one or more of sodium tripolyphosphate, sodium pyrophosphate, sodium trimetaphosphate, and sodium tetrapolyphosphate, preferably sodium tripolyphosphate.
According to the present invention, the alkali compound may have various choices, and preferably, the alkali compound is one or more of sodium hydroxide, potassium hydroxide, lithium hydroxide, calcium hydroxide, sodium carbonate and potassium carbonate, preferably sodium hydroxide.
In a preferred embodiment of the invention, the composition consists of sulfonated bitumen, lignosulfonates, humates, phosphates and alkali compounds.
In a second aspect, the invention provides a coal water slurry additive comprising the above composition.
According to the invention, the coal water slurry additive can be the coal water slurry additive composition and can also be a mixture of the coal water slurry additive composition and other substances (such as a mixture of the coal water slurry additive composition and water), and preferably, the content of the coal water slurry additive composition in the coal water slurry additive is 80-100 wt%.
In a third aspect, the present invention provides a method for producing a coal water slurry, comprising: and pulping the coal, the coal-water slurry additive and the water, wherein the coal-water slurry additive contains the composition.
According to the invention, the composition can be used for preparing the coal water slurry with good fluidity, high concentration and good stability at a lower dosage, and the dosage of the composition is preferably 0.1 to 1 weight percent, and preferably 0.1 to 0.5 weight percent (based on the total weight of the coal water slurry).
Wherein the coal water slurry additive may be as described above.
The coal water slurry additive provided by the invention has the advantages of low cost, small dosage, capability of obtaining the coal water slurry with good fluidity, high concentration and good stability, and compared with the conventional common additive, the coal water slurry concentration is improved by 1-2% under the same condition, and the price is reduced by 30%. In addition, the coal water slurry additive has wide application range, is not only suitable for coal pulping, but also can be used for pulping coal direct liquefaction residues and/or coal direct liquefaction residue raffinate.
The present invention will be described in detail below by way of examples.
In the following examples: the 1# coal source is the coal of the make-up tower, the 2# coal source is the coal of the Brilliant boundary, the 3# coal source is the coal direct liquefaction residue, and the 4# coal source is the coal direct liquefaction residue raffinate, and the particle size distribution of the coal direct liquefaction residue and the coal direct liquefaction residue raffinate is shown in the table 1, wherein the powder particle size of the dry powder is measured by the coal direct liquefaction residue and the coal direct liquefaction residue raffinate.
TABLE 1
Note: the content refers to the weight percentage of coal particles that leak through a given sieve to the total coal particles.
The sulfonated asphalt is a sulfonated asphalt purchased from Mingtai chemical Co., Ltd, Henan, with a sulfonic acid group content of 12 wt%, a water-soluble substance content of 75 wt%, and a water content of 6 wt%.
Sodium lignosulfonate was purchased from paper industries, Inc. of Linhong Kong Yongchun, and ammonium lignosulfonate was purchased from Shenyang Zhengzheng and Chemicals, Inc. Sodium humate was purchased from Henry technologies, Inc. of Ughai, and potassium humate was purchased from Henry technologies, Inc. of Ughai.
Examples 1 to 8
This example illustrates the coal water slurry additives and compositions of the present invention.
The materials listed in the examples were mixed according to the formulation in Table 2 to obtain respective coal-water slurry additives.
Comparative example 1
The formulation described in example 1, except that no lignosulfonate was used, the specific formulation is shown in table 2, resulting in a coal water slurry additive DA 1.
Comparative example 2
The formulation described in example 1, except that no humate was used, the specific formulation is shown in table 2, yielding a coal-water slurry additive DA 2.
Comparative example 3
The formulation described in example 1, except that no phosphate was used, the specific formulation is shown in table 2, yielding a coal water slurry additive DA 3.
Comparative example 4
The formulation described in example 1, except that no alkali was used, the specific formulation is shown in table 2, yielding a coal water slurry additive DA 4.
Comparative example 5
According to the formula described in example 1, except that the contents of the components are different, the concrete formula is shown in Table 2, and the coal water slurry additive DA5 is obtained.
Comparative example 6
According to the formula described in example 1, except that the contents of the components are different, the concrete formula is shown in Table 2, and the coal water slurry additive DA6 is obtained.
TABLE 2
Note: the above weight parts are all based on dry weight.
Example coal Water slurry
Respectively preparing the coal water slurry additive (the addition amount is shown in table 3, and the weight of the dry coal is taken as a reference) together with a coal source (the type of the coal source is shown in table 3) and water to prepare the coal water slurry, wherein the addition amount of the coal water slurry dispersant is shown in table 3, and the apparent viscosity of the obtained coal water slurry is maintained at the specified viscosity (normal temperature, 100 s) under the condition that the apparent viscosity of the obtained coal water slurry is maintained at the specified viscosity-1Measured at shear rate), the concentrations of the resulting slurries with different slurry additives, water separation rates at different test times, flowability, and stability are shown in table 3.
And the water precipitation rate is obtained by filling the coal water slurry into a measuring cylinder, standing for 24 hours and measuring the percentage of the water precipitation amount in the measuring cylinder to the coal water slurry amount.
Flowability is measured by visual inspection, where grade a refers to continuous flow, grade B refers to discontinuous flow, and grade C refers to no flow.
The stability is tested by adopting a plunger method after a tested coal water slurry sample is sealed and kept stand for 24 hours, wherein the A level means that the slurry keeps an initial state and does not separate water and precipitate; grade B refers to the production of a small amount of water or soft precipitate; the C level refers to that precipitates are generated, the density distribution is uneven, and the precipitates can be regenerated after stirring; stage D means that a hard precipitate is produced and stirring is not recoverable.
TABLE 3
As can be seen from the data in the table above, the coal water slurry obtained by using the coal water slurry additive has higher concentration, better fluidity and stability.
The preferred embodiments of the present invention have been described above in detail, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention, including combinations of various technical features in any other suitable way, and these simple modifications and combinations should also be regarded as the disclosure of the invention, and all fall within the scope of the invention.
Claims (15)
1. A coal water slurry additive composition characterized in that the composition comprises a sulfonated asphalt, a lignosulfonate, a humate, a phosphate, and a base compound;
wherein, relative to 100 weight parts of sulfonated asphalt, the content of the lignosulfonate is 10-80 weight parts, the content of the humate is 50-300 weight parts, the content of the phosphate is 10-50 weight parts, and the content of the alkali compound is 2-40 weight parts.
2. The composition according to claim 1, wherein the lignosulfonate is in an amount of 20-70 parts by weight, the humate is in an amount of 60-250 parts by weight, the phosphate is in an amount of 20-50 parts by weight, and the alkali compound is in an amount of 5-30 parts by weight, relative to 100 parts by weight of the sulfonated asphalt.
3. The composition according to claim 2, wherein the lignosulfonate is 30-50 parts by weight, the humate is 65-220 parts by weight, the phosphate is 30-45 parts by weight, and the alkali compound is 6-25 parts by weight, relative to 100 parts by weight of the sulfonated asphalt.
4. The composition according to claim 3, wherein the lignosulfonate is 30-50 parts by weight, the humate is 65-100 parts by weight, the phosphate is 30-40 parts by weight, and the alkali compound is 6-15 parts by weight, relative to 100 parts by weight of the sulfonated asphalt.
5. The composition of any of claims 1-4, wherein the lignosulfonate is one or more of sodium lignosulfonate, ammonium lignosulfonate, calcium lignosulfonate, potassium lignosulfonate, and magnesium lignosulfonate.
6. The composition of claim 5, wherein the lignosulfonate is sodium lignosulfonate.
7. The composition according to any one of claims 1-4 and 6, wherein the salt of humic acid is one or more of sodium humic acid, potassium humic acid and ammonium humic acid.
8. The composition of claim 7, wherein the humate is sodium humate.
9. The composition of any one of claims 1-4, 6, and 8, wherein the phosphate is one or more of sodium tripolyphosphate, sodium pyrophosphate, sodium trimetaphosphate, and sodium tetrapolyphosphate.
10. The composition of claim 9, wherein the phosphate salt is sodium tripolyphosphate.
11. The composition of any one of claims 1-4, 6, 8, and 10, wherein the base compound is one or more of sodium hydroxide, potassium hydroxide, lithium hydroxide, calcium hydroxide, sodium carbonate, and potassium carbonate.
12. The composition according to claim 11, wherein the basic compound is sodium hydroxide.
13. A coal water slurry additive comprising the composition of any one of claims 1 to 12.
14. A preparation method of coal water slurry comprises the following steps: slurrying coal, a coal-water slurry additive and water, wherein the coal-water slurry additive comprises the composition of any one of claims 1-12.
15. The method of claim 14 wherein the composition is present in an amount of from 0.1 to 1 percent by weight, based on the total weight of the coal-water slurry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711310983.9A CN109897704B (en) | 2017-12-11 | 2017-12-11 | Coal water slurry additive, composition thereof and preparation method of coal water slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711310983.9A CN109897704B (en) | 2017-12-11 | 2017-12-11 | Coal water slurry additive, composition thereof and preparation method of coal water slurry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109897704A CN109897704A (en) | 2019-06-18 |
| CN109897704B true CN109897704B (en) | 2021-03-09 |
Family
ID=66942596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711310983.9A Active CN109897704B (en) | 2017-12-11 | 2017-12-11 | Coal water slurry additive, composition thereof and preparation method of coal water slurry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109897704B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114479969B (en) * | 2020-10-27 | 2023-08-11 | 万华化学集团股份有限公司 | Water-coal-slurry additive and preparation method thereof |
| CN115181595B (en) * | 2022-07-14 | 2023-10-20 | 中国科学院宁波材料技术与工程研究所 | Phenol oil modified coal water slurry dispersing agent and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4746325A (en) * | 1985-07-23 | 1988-05-24 | Fuji Oil Co., Ltd. | Process for producing coal-water slurry at high concentration |
| US5322556A (en) * | 1989-12-21 | 1994-06-21 | Eniricerche S.P.A. | Process for preparing a sulfonated dispersant from petroleum asphalt fractions |
| CN101029259A (en) * | 2006-04-24 | 2007-09-05 | 广州迪森热能技术股份有限公司 | Desulfurized hydrated coking slurry formula and its production |
| CN103468334A (en) * | 2013-08-01 | 2013-12-25 | 安徽省安邦矿物有限公司 | Suspension stabilizer for coal-water slurry |
| CN103509617A (en) * | 2013-01-17 | 2014-01-15 | 湖南东盈煤化工技术开发有限公司 | Special composite coal water slurry additive for coal gasification |
-
2017
- 2017-12-11 CN CN201711310983.9A patent/CN109897704B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4746325A (en) * | 1985-07-23 | 1988-05-24 | Fuji Oil Co., Ltd. | Process for producing coal-water slurry at high concentration |
| US5322556A (en) * | 1989-12-21 | 1994-06-21 | Eniricerche S.P.A. | Process for preparing a sulfonated dispersant from petroleum asphalt fractions |
| CN101029259A (en) * | 2006-04-24 | 2007-09-05 | 广州迪森热能技术股份有限公司 | Desulfurized hydrated coking slurry formula and its production |
| CN103509617A (en) * | 2013-01-17 | 2014-01-15 | 湖南东盈煤化工技术开发有限公司 | Special composite coal water slurry additive for coal gasification |
| CN103468334A (en) * | 2013-08-01 | 2013-12-25 | 安徽省安邦矿物有限公司 | Suspension stabilizer for coal-water slurry |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109897704A (en) | 2019-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101735870B (en) | Coal water slurry additive and preparation method and application thereof | |
| CN102911313B (en) | Preparation method of anion sulfonate type coal water slurry dispersant | |
| CN103980968B (en) | A kind of oily sludge coal slurry and preparation method thereof | |
| CN109897704B (en) | Coal water slurry additive, composition thereof and preparation method of coal water slurry | |
| CN104946288B (en) | Modified coal tar pitch and preparation method thereof | |
| CN111690447B (en) | Coal water slurry additive and preparation method and application thereof | |
| CN105038879A (en) | Application of coal water slurry additive | |
| CN101543744A (en) | Multi-component composite water-coal-slurry dispersant and application thereof | |
| CN102329669B (en) | Slurries additive agent | |
| CN102653631A (en) | Mixed asphalt for pavements and preparation method for mixed asphalt | |
| CN109233923A (en) | A kind of method that crude product humic acid prepares humic acid dispersant | |
| CN102888263A (en) | Preparation of nano-grade high-alkalinity calcium alkyl salicylate additive | |
| CN108165331A (en) | A kind of Compositional type slurries additive agent | |
| CN106221683B (en) | Preparation method of well cementation spacer fluid for water-based drilling fluid | |
| CN104726149A (en) | Bio-based methanol gasoline composite auxiliary and bio-based high-proportion methanol gasoline | |
| CN101967411B (en) | Microemulsified watered diesel, additive used thereby and preparation process thereof | |
| CN107488473B (en) | A kind of preparation method of modified washing oil slurries additive agent | |
| CN105482859B (en) | Environmentally-friendly treatment type coal water slurry additive suitable for coal chemical industry coal water slurry preparing and waste mixing technology, and preparation method and use thereof | |
| CN102839026B (en) | Method for producing coal water slurry additive by utilizing heterocyclic ring aromatic hydrocarbon-enriched component | |
| CN107641329B (en) | Environment-friendly warm mix compound modified asphalt for asphalt pavement, modifier and preparation method thereof | |
| CN102614809B (en) | Method for preparing dispersing-stabilizing agent by using papermaking sludge | |
| CN103642550B (en) | A kind of coal slurry and preparation method thereof | |
| CN102952595B (en) | Superfine water coal slurry and preparation method of superfine water coal slurry | |
| CN103468009A (en) | Modified road asphalt and production process thereof | |
| CN101089152B (en) | Industrial fuel gas for metal welding and cutting in high efficiency and low consumption |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 100011 Beijing Dongcheng District, West Binhe Road, No. 22 Patentee after: CHINA ENERGY INVESTMENT Corp.,Ltd. Patentee after: Beijing low carbon clean energy research institute Address before: 100011 Shenhua building, 22 West Binhe Road, Dongcheng District, Beijing Patentee before: SHENHUA GROUP Corp.,Ltd. Patentee before: Beijing low carbon clean energy research institute |
|
| CP03 | Change of name, title or address |